CN110501233B - Test device for simulating wall deflection to induce wall rear soil deformation through water pressure drive - Google Patents
Test device for simulating wall deflection to induce wall rear soil deformation through water pressure drive Download PDFInfo
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- CN110501233B CN110501233B CN201910629744.2A CN201910629744A CN110501233B CN 110501233 B CN110501233 B CN 110501233B CN 201910629744 A CN201910629744 A CN 201910629744A CN 110501233 B CN110501233 B CN 110501233B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
Abstract
The invention relates to a test device for inducing deformation of a wall rear soil body by simulating wall deflection through water pressure drive, which comprises a model box, a soil body elastic diaphragm component and a water body elastic diaphragm, wherein the soil body elastic diaphragm component and the water body elastic diaphragm are vertically arranged in the model box, the model box is divided into a wall rear soil body chamber, a foundation pit chamber and a water body chamber through the soil body elastic diaphragm component and the water body elastic diaphragm, the foundation pit chamber is positioned between the wall rear soil body chamber and the water body chamber, and a retaining wall deflection unit and a retaining wall limiting unit arranged between the retaining wall deflection unit and the water body chamber are arranged in the. Compared with the prior art, the invention can simulate the deformation of the retaining wall of the foundation pit to induce the deformation of the soil body behind the wall, and the retaining wall displacement component generates quantitative displacement and the elastic diaphragm of the soil body generates deformation by adjusting the water pressure of the water chamber and the limiting element so as to simulate the displacement of the retaining wall under different excavation working conditions to obtain the deformation of the soil body behind the wall, and the test result can be used for guiding the excavation design of the foundation pit in the actual engineering.
Description
Technical Field
The invention belongs to the technical field of foundation pit engineering, and relates to a test device for simulating wall deflection to induce deformation of a soil body behind a wall by water pressure driving.
Background
Along with the construction of urban high-rise buildings, the large-scale construction of rail transit and the utilization problem of urban underground space caused by the construction, the problem of influence of excavation on the surrounding environment is paid much attention to by the engineering boundary, and after the excavation, the retaining structure inevitably moves and deforms, so that the soil body of the surrounding foundation loses the original balance state and is settled.
At present, the settlement of the earth surface behind the wall caused by the deflection of the foundation pit retaining wall still depends on a classical empirical method or elastic-plastic finite element calculation, and a strict theoretical analysis means is still lacked, so that a certain error exists in the estimation of the settlement condition of the earth body behind the actual retaining wall, and design waste or potential safety hazard is often brought. And the ground surface settlement behind the wall induced by the on-site monitoring of the foundation pit excavation is usually in a state of sheep death and reinforcement, and a large amount of manpower and material resources are consumed.
Therefore, it is necessary to establish a testing device capable of simulating the deformation of the soil body behind the wall caused by the deflection of the retaining wall in the foundation pit, so as to guide the excavation design of the foundation pit of the actual engineering, solve the potential safety hazard in the actual engineering and achieve the effect of economy.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a test device for simulating the wall deflection induced wall back soil deformation by water pressure drive.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a water pressure drive simulation barricade shifts and induces test device that soil body warp behind wall, includes mold box, vertical setting soil body elastic diaphragm subassembly and water elastic diaphragm at the mold box, soil body elastic diaphragm subassembly and water elastic diaphragm separate the inner space of mold box for wall back soil body room, foundation ditch room and water room, the foundation ditch room be located behind the wall between soil body room and the water room, the foundation ditch indoor barricade unit and the barricade spacing unit of shifting that are equipped with of foundation ditch, the water room drive soil body elastic diaphragm subassembly through the barricade unit of shifting and take place deformation, the spacing unit setting of barricade between barricade unit and water elastic diaphragm that shifts.
The soil body elastic diaphragm assembly and the water body elastic diaphragm are arranged in parallel, a space enclosed between the soil body elastic diaphragm assembly and the model box is a soil body chamber behind a wall, and a space enclosed between the water body elastic diaphragm assembly and the model box is a water body chamber.
The device simulates the deformation condition of the soil body behind the wall according to the deformation of the retaining wall measured by engineering. The test is carried out in the model box, the vertical soil body elastic diaphragm subassembly that sets up in the model box is used for simulating the deformation barricade, the indoor soil body that fills behind the wall, indoor barricade unit and the barricade spacing unit of setting up of foundation ditch, the indoor water that is filled up in the water room, when the indoor water yield of water reduces, when water pressure reduces, water elastic diaphragm is the internal contraction, the pulling barricade unit that shifts removes, the displacement that shifts the unit through the barricade makes soil body elastic diaphragm subassembly produce deformation, shift with the deformation of simulation barricade, the displacement volume that barricade spacing unit can restrict the barricade unit that shifts, thereby the deformation volume of control soil body.
Furthermore, the soil body elastic diaphragm component comprises an upper fixed plate fixedly connected with the top of the model box, a lower fixed plate fixedly connected with the bottom of the model box and a soil body elastic diaphragm arranged between the upper fixed plate and the lower fixed plate, and the retaining wall deflection unit is fixedly connected with the soil body elastic diaphragm.
The upper fixing plate and the lower fixing plate are arranged in parallel, two ends of the upper fixing plate are fixedly connected with 2 parallel side walls of the model box respectively, two ends of the lower fixing plate are fixedly connected with 2 parallel side walls of the model box respectively, and the upper end and the lower end of the soil body elastic diaphragm are fixedly connected with the bottom of the upper fixing plate and the top of the lower fixing plate respectively.
The soil body elastic diaphragm assembly is used for simulating a foundation pit retaining wall, the upper fixing plate and the lower fixing plate are used for fixing the position of the soil body elastic diaphragm, and the soil body elastic diaphragm is used for simulating the foundation pit retaining wall of a deformation part.
As a preferred technical scheme, the soil body elastic diaphragm and the water body elastic diaphragm are latex films.
Furthermore, the retaining wall deflection unit comprises a plurality of retaining wall deflection assemblies arranged along the vertical direction, and the retaining wall deflection assemblies can move along the horizontal direction.
The retaining wall deflection unit is used for regulating and controlling the deformation of the soil body elastic diaphragm so as to simulate the deformation and deflection of the retaining wall, and the plurality of retaining wall deflection assemblies arranged along the vertical direction can realize the deflection simulation of the segmented retaining wall.
Furthermore, the retaining wall deflection component comprises a cubic column shell fixedly connected with the soil body elastic diaphragm and a retaining wall push plate arranged in the cubic column shell and fixedly connected with the cubic column shell.
Further, the bottom of the upper layer of the cubic column housing is in sliding contact with the top of the adjacent lower layer of the cubic column housing.
The retaining wall deflection components are closely arranged, so that the sections of the segmented retaining wall which are deflected are continuously distributed to be close to the actual retaining wall deflection condition.
Further, the device still includes a plurality of water push plates of laying on water elastic diaphragm along vertical direction and sets up the push rod between water push plate and barricade subassembly that shifts, the water push plate shift the subassembly transmission through push rod and corresponding barricade and be connected.
The two ends of the water body push plate are respectively fixedly connected with one end of the push rod and the water body elastic diaphragm, and the other end of the push rod penetrates through the cubic column shell to be fixedly connected with the retaining wall push plate.
The water elastic diaphragm is connected with the retaining wall deflection component through the water push plate and the push rod, so that the water elastic diaphragm is in transmission connection with the soil elastic diaphragm, and when the water elastic diaphragm deforms, the soil elastic diaphragm deforms accordingly.
Furthermore, the retaining wall limiting unit comprises a limiting support arranged inside the model box and a plurality of limiting elements arranged on the limiting support along the vertical direction, and the limiting elements are matched with the corresponding cubic column shell.
Furthermore, the limiting element comprises a limiting rod arranged on the limiting bracket along the horizontal direction and a limiting baffle vertically arranged at one end of the limiting rod.
The heights of the limiting elements are matched with the heights of the corresponding cubic column shells, so that when the retaining wall displacement component moves, the cubic column shells can be in contact with the limiting baffle plates on the corresponding limiting elements to limit the displacement of the retaining wall displacement component.
As a preferred technical scheme, the limiting rod is provided with a telescopic structure, so that the limiting baffle can be displaced along the horizontal direction to adjust the horizontal position of the limiting baffle.
Or, the limiting rod is provided with a sliding rail, the limiting support is provided with a sliding seat, the limiting rod and the limiting support are connected with the sliding seat in a sliding mode through the sliding rail, and the limiting baffle can be displaced along the horizontal direction to adjust the horizontal position of the limiting baffle.
The moving direction or the telescopic direction of the limiting rod is the same as the moving direction of the retaining wall deflection component.
The limiting element can limit the displacement of the retaining wall displacement component according to data collected by actual engineering, so that the deformation of the elastic diaphragm is limited, and the retaining wall displacement condition of the actual engineering is simulated.
As the preferred technical scheme, the limiting rod is provided with a scale used for quantitatively setting the displacement of each section in the displacement of the segmented retaining wall.
Furthermore, the device also comprises a water outlet which is arranged on the outer wall of the model box and is communicated with the water body chamber.
Further, the device also comprises a water pump which is communicated with the water body chamber through a water outlet. Water in the water body chamber is pumped out through the water pump so as to reduce the water pressure of the water body chamber and enable the elastic diaphragm of the water body to deform inwards.
As the preferred technical scheme, the model box, the lower fixing plate, the upper fixing plate, the cubic column shell, the limiting element, the limiting bracket, the push rod, the water outlet, the water body push plate and the retaining wall push plate are made of steel structures so as to ensure the mechanical strength of the device.
The working principle is as follows: the device simulates the deformation condition of the soil body behind the wall according to the deformation of the retaining wall measured by engineering. In the preparation stage, the limiting element is pulled out to contact with the cubic column shell, then soil is filled in the soil body chamber behind the wall, a proper amount of water is filled in the water body chamber, so that the water body elastic diaphragm and the soil body elastic diaphragm are both positioned in a vertical plane, at the moment, the scale on the limiting element is positioned at a zero scale, then the limiting element is moved to the horizontal direction far away from the soil body elastic diaphragm component, the displacement of each limiting unit is adjusted according to the lateral displacement data of the retaining wall collected in the actual engineering field, a proper amount of water is pumped out from the water outlet by a water pump, so that the water body elastic diaphragm is deformed inwards, the retaining wall displacement component is pulled to be displaced until the cubic column shell is contacted with the corresponding limiting element, the soil body elastic diaphragm fixed on the retaining wall displacement component is correspondingly deformed, and the deformation quantity generated by the soil body elastic diaphragm is close to the actual, at the moment, the deformation and settlement conditions of the actual soil body can be estimated by observing the deformation conditions of the soil body indoor behind the wall.
Compared with the prior art, the invention has the following characteristics:
1) the invention can simulate the deformation of the retaining wall in the foundation pit to induce the deformation of the soil body behind the wall, and the retaining wall displacement component generates quantitative displacement and the deformation of the elastic diaphragm of the soil body by adjusting the water pressure in the water body chamber and the limiting element so as to simulate the displacement of the retaining wall under different excavation working conditions to obtain the deformation of the soil body behind the wall, and the test result can be used for guiding the excavation design of the foundation pit in the actual engineering;
2) the invention has simple structure and convenient operation, can simulate the deformation condition of the soil body behind the wall according to the displacement condition of the foundation pit retaining wall, and has higher reliability.
Drawings
FIG. 1 is a front view of a test apparatus for simulating wall deflection to induce wall deformation;
FIG. 2 is a left side view of a test apparatus for simulating wall deflection to induce wall deformation;
FIG. 3 is a top view of a test apparatus for simulating wall deflection to induce wall deformation;
the notation in the figure is:
1-model box, 2-lower fixed plate, 3-upper fixed plate, 4-soil body elastic diaphragm, 5-cubic column shell, 6-spacing element, 601-spacing rod, 602-spacing baffle, 7-spacing support, 8-water body elastic diaphragm, 9-push rod, 10-water outlet, 11-water body push plate, 12-wall rear soil body chamber, 13-retaining wall push plate, 14-foundation pit chamber and 15-water body chamber.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example (b):
as shown in fig. 1, fig. 2 and fig. 3, the test apparatus for inducing deformation of a soil body behind a wall by simulating wall displacement through water pressure drive comprises a model box 1, a soil body elastic diaphragm assembly and a water body elastic diaphragm 8 vertically arranged in the model box 1, wherein the model box 1 is divided into a soil body chamber 12 behind the wall, a foundation pit chamber 14 and a water body chamber 15 by the soil body elastic diaphragm assembly and the water body elastic diaphragm 8, the foundation pit chamber 14 is positioned between the soil body chamber 12 behind the wall and the water body chamber 15, a retaining wall displacement unit and a retaining wall limiting unit are arranged in the foundation pit chamber 14, the water body chamber 15 drives the soil body elastic diaphragm assembly to deform through the retaining wall displacement unit, and the retaining wall limiting unit is arranged between the retaining wall displacement unit and the water body elastic.
The soil body elastic diaphragm component and the water body elastic diaphragm 8 are arranged in parallel, the space enclosed between the soil body elastic diaphragm component and the model box 1 is a soil body chamber 12 behind the wall, and the space enclosed between the water body elastic diaphragm 8 and the model box 1 is a water body chamber 15.
The device simulates the deformation condition of the soil body behind the wall according to the deformation of the retaining wall measured by engineering. The test is carried out in the model box 1, the vertical soil body elastic diaphragm subassembly that sets up in the model box 1 is used for simulating the deformation barricade, pack the soil body in the soil body room 12 behind the wall, set up barricade unit and the spacing unit of barricade that shift in the foundation pit indoor 14, be full of water in the water room 15, the water volume reduces in the water room 15, when water pressure reduces, water body elastic diaphragm 8 is the internal contraction, the pulling barricade unit that shifts removes, shift through the barricade shift the displacement of unit make the production deformation of soil body elastic diaphragm subassembly, shift with the simulation barricade deformation, the displacement volume that the barricade unit shifted can be restricted to the barricade spacing unit, thereby the deformation volume of.
The soil body elastic diaphragm component comprises an upper fixing plate 3 fixedly connected with the top of the model box 1, a lower fixing plate 2 fixedly connected with the bottom of the model box 1 and a soil body elastic diaphragm 4 arranged between the upper fixing plate 3 and the lower fixing plate 2, and the retaining wall deflection unit is fixedly connected with the soil body elastic diaphragm 4.
The upper fixing plate 3 and the lower fixing plate 2 are arranged in parallel, two ends of the upper fixing plate 3 are fixedly connected with 2 parallel side walls of the model box 1 respectively, two ends of the lower fixing plate 2 are fixedly connected with 2 parallel side walls of the model box 1 respectively, and the upper end and the lower end of the soil body elastic diaphragm 4 are fixedly connected with the bottom of the upper fixing plate 3 and the top of the lower fixing plate 2 respectively.
The soil body elastic diaphragm assembly is used for simulating a foundation pit retaining wall, the upper fixing plate 3 and the lower fixing plate 2 are used for fixing the position of the soil body elastic diaphragm 4, and the soil body elastic diaphragm 4 is used for simulating the foundation pit retaining wall of a deformation part.
The soil body elastic diaphragm 4 and the water body elastic diaphragm 8 are latex films.
The retaining wall deflection unit comprises a plurality of retaining wall deflection assemblies which are arranged along the vertical direction, and the retaining wall deflection assemblies can move along the horizontal direction.
The retaining wall deflection unit is used for regulating and controlling the deformation of the soil body elastic diaphragm 4 so as to simulate the deformation and deflection of the retaining wall, and the plurality of retaining wall deflection assemblies arranged along the vertical direction can realize the deflection simulation of the segmented retaining wall.
The retaining wall deflection component comprises a cubic column shell 5 fixedly connected with the soil body elastic diaphragm 4 and a retaining wall push plate 13 which is arranged in the cubic column shell 5 and fixedly connected with the cubic column shell 5.
The bottom of the upper level of the cube-column housing 5 is in sliding contact with the top of the adjacent lower level of the cube-column housing 5.
The retaining wall deflection components are closely arranged, so that the sections of the segmented retaining wall which are deflected are continuously distributed to be close to the actual retaining wall deflection condition.
The device also comprises a plurality of water body push plates 11 which are arranged on the water body elastic diaphragm 8 along the vertical direction and push rods 9 which are arranged between the water body push plates 11 and the retaining wall displacement components, wherein the water body push plates 11 are connected with the corresponding retaining wall displacement components through the push rods 9.
Two ends of the water body push plate 11 are respectively fixedly connected with one end of the push rod 9 and the water body elastic diaphragm 8, and the other end of the push rod 9 penetrates through the cubic column shell 5 to be fixedly connected with the retaining wall push plate 13.
The water elastic diaphragm 8 is connected with the retaining wall deflection component through the water push plate 11 and the push rod 9, so that the connection of the water elastic diaphragm 8 and the soil elastic diaphragm 4 is realized, and when the water elastic diaphragm 8 deforms, the soil elastic diaphragm 4 deforms accordingly.
The retaining wall limiting unit comprises a limiting bracket 7 arranged inside the model box 1 and a plurality of limiting elements 6 arranged on the limiting bracket 7 in the vertical direction, and the limiting elements 6 are matched with the corresponding cubic column shells 5.
The limiting element 6 comprises a limiting rod 601 horizontally arranged on the limiting bracket 7 and a limiting baffle 602 vertically arranged at one end of the limiting rod 601.
The heights of the plurality of limiting elements 6 are matched with the heights of the corresponding cubic column shells 5, so that when the retaining wall deflection component moves, the cubic column shells 5 can be contacted with the limiting baffle 602 on the corresponding limiting elements 6 to limit the displacement of the retaining wall deflection component.
The limiting rod 601 has a telescopic structure, so that the limiting baffle 602 can generate displacement along the horizontal direction.
The moving direction or the telescopic direction of the limiting rod 601 is the same as the moving direction of the retaining wall deflection component.
The limiting element 6 can limit the displacement of the retaining wall displacement component according to data collected in actual engineering, so that the deformation of the elastic diaphragm 4 is limited, and the retaining wall displacement condition of the actual engineering is simulated.
The limiting rod 601 is provided with a scale for quantitatively setting the displacement of each section in the displacement of the segmented retaining wall.
The device also comprises a water outlet 10, and the water outlet 10 is arranged on the outer wall of the model box 1 and is communicated with the water body chamber 15.
The device also comprises a water pump which is communicated with the water body chamber 15 through a water outlet 10. The water in the water body chamber 15 is pumped out through the water pump so as to reduce the water pressure of the water body chamber 15, and the water body elastic diaphragm 8 is deformed inwards.
The model box 1, the lower fixing plate 2, the upper fixing plate 3, the cubic column shell 5, the limiting element 6, the limiting bracket 7, the push rod 9, the water outlet 10, the water body push plate 11 and the retaining wall push plate 13 are made of steel structures so as to ensure the mechanical strength of the device.
The working principle is as follows: the device simulates the deformation condition of the soil body behind the wall according to the deformation of the retaining wall measured by engineering. In the preparation stage, the limiting element 6 is pulled out to contact with the cubic column shell 5, then the soil body is filled in the soil body chamber 12 behind the wall, a proper amount of water is filled in the water body chamber 15, so that the water body elastic diaphragm 8 and the soil body elastic diaphragm 4 are both positioned in a vertical plane, at the moment, a scale on the limiting element 6 is positioned at a zero scale, then the limiting element 6 is moved towards the horizontal direction far away from the soil body elastic diaphragm component, the displacement amount of each limiting unit 6 is adjusted according to lateral displacement data of the retaining wall collected in the actual engineering field, a proper amount of water is pumped out from the water outlet 10 through a water pump, so that the water body elastic diaphragm 8 is deformed inwards, the retaining wall displacement component is pulled to be displaced until the cubic column shell 5 contacts with the corresponding limiting element 6, the soil body elastic diaphragm 4 fixed on the retaining wall displacement component is correspondingly deformed along with the, the deformation amount generated by the soil body elastic diaphragm 4 is close to the actual retaining wall displacement amount, and the deformation and settlement condition of the actual soil body can be estimated by observing the deformation condition of the soil body in the soil body chamber 12 behind the wall.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (5)
1. A test device for simulating retaining wall displacement to induce wall-behind soil deformation by water pressure driving is characterized by comprising a model box (1), a soil elastic diaphragm component and a water elastic diaphragm (8) which are vertically arranged in the model box (1), wherein the soil elastic diaphragm component and the water elastic diaphragm (8) divide the internal space of the model box (1) into a wall-behind soil chamber (12), a foundation pit chamber (14) and a water chamber (15), the foundation pit chamber (14) is positioned between the wall-behind soil chamber (12) and the water chamber (15), a retaining wall displacement unit and a retaining wall limiting unit are arranged in the foundation pit chamber (14), the water chamber (15) drives the soil elastic diaphragm component to deform through the retaining wall displacement unit, and the retaining wall limiting unit is arranged between the retaining wall displacement unit and the water elastic diaphragm (8);
the soil body elastic diaphragm component comprises an upper fixing plate (3) fixedly connected with the top of the model box (1), a lower fixing plate (2) fixedly connected with the bottom of the model box (1) and a soil body elastic diaphragm (4) arranged between the upper fixing plate (3) and the lower fixing plate (2), and the retaining wall deflection unit is fixedly connected with the soil body elastic diaphragm (4);
the retaining wall deflection unit comprises a plurality of retaining wall deflection assemblies which are arranged along the vertical direction, and the retaining wall deflection assemblies can move along the horizontal direction;
the retaining wall displacement component comprises a cubic column shell (5) fixedly connected with the soil body elastic diaphragm (4) and a retaining wall push plate (13) which is arranged in the cubic column shell (5) and fixedly connected with the cubic column shell (5);
the retaining wall limiting unit comprises a limiting support (7) arranged inside the model box (1) and a plurality of limiting elements (6) arranged on the limiting support (7) along the vertical direction, and the limiting elements (6) are matched with the corresponding cubic column shells (5);
the limiting element (6) comprises a limiting rod (601) arranged on the limiting bracket (7) along the horizontal direction and a limiting baffle (602) vertically arranged at one end of the limiting rod (601);
the horizontal position of the limit baffle (602) can be adjusted.
2. The test device for simulating wall deflection to induce wall soil deformation by water pressure drive according to claim 1, wherein the bottom of the upper layer of the cubic column housing (5) is in sliding contact with the top of the adjacent lower layer of the cubic column housing (5).
3. The test device for simulating the wall-back soil deformation induced by the wall deflection through the water pressure driving according to claim 1, characterized by further comprising a plurality of water body push plates (11) vertically arranged on the water body elastic diaphragm (8) and push rods (9) arranged between the water body push plates (11) and the wall deflection components, wherein the water body push plates (11) are in transmission connection with the corresponding wall deflection components through the push rods (9).
4. The test device for the water pressure driven simulation retaining wall deflection to induce the deformation of the soil body behind the wall is characterized in that the device further comprises a water outlet (10), and the water outlet (10) is arranged on the outer wall of the model box (1) and is communicated with the water body chamber (15).
5. The test device for simulating wall deflection to induce wall soil deformation by water pressure driving according to claim 4, characterized in that the device further comprises a water pump, and the water pump is communicated with the water chamber (15) through the water outlet (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910629744.2A CN110501233B (en) | 2019-07-12 | 2019-07-12 | Test device for simulating wall deflection to induce wall rear soil deformation through water pressure drive |
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| CN201910629744.2A CN110501233B (en) | 2019-07-12 | 2019-07-12 | Test device for simulating wall deflection to induce wall rear soil deformation through water pressure drive |
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| CN110501233B true CN110501233B (en) | 2021-03-26 |
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| CN113483690B (en) * | 2021-07-08 | 2022-04-19 | 西安电子科技大学 | Deformation perception and electromagnetic regulation experimental device of intelligent capsule antenna |
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| CN109030199A (en) * | 2018-05-22 | 2018-12-18 | 湖南理工学院 | Flexible retaining wall Earth Pressure Models test method |
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